/ Thesaurus / O Synonyms of oxybutyric acid Find synonyms for: Noun1. hydroxybutyric acid, oxybutyric acid, butyric acid, butanoic acidusage: hydroxy derivative of butyric acidWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language